Wall over a trimmer

Structure · Joists · printed page 55 (PDF page 56)

Original page Sign in to save

Book index entries

Trimmers with Wall Above over a Trimmer Furnace – Joists Joists

Text in the illustration

wall over trimmer
the trimmers around a stairwell opening (for example) may be appropriately doubled or tripled to carry the point load of the header, but the one below the wall also requires further strengthening to carry the extra load of the wall
look for a beam, column or loadbearing wall under the trimmer in cases like this
header
trimmer
perspective view

Generated explanation

The perspective drawing shows wood floor joists and a header framing a stairwell opening between built-up trimmers. A stud wall with a framed opening sits directly above one trimmer. The annotation explains that doubled or tripled trimmers may carry the header's point load but require further strengthening where they also support a wall. A dashed circle and upward arrow highlight the support location beneath the wall-bearing trimmer, with a callout directing the inspector to look for a beam, column, or loadbearing wall below.